1. Chow, B., Lu, P., and Ni, L.Hamilton’s Ricci flow, volume 77 ofGraduate Studies in Mathematics, American Mathematical Society, Providence, RI, (2006).
2. Hamilton, R. S. Three-manifolds with positive Ricci curvature,J. Differential Geom. 17(2), 255–306, (1982).
3. Hamilton, R. S. Four-manifolds with positive curvature operator,J. Differential Geom. 24(2), 153–179, (1986).
4. Hamilton, R. S. The formation of singularities in the Ricci flow inSurveys in Differential Geometry, Vol. II (Cambridge, MA, 1993), 7–136. Internat. Press, Cambridge, MA, (1995).
5. Perelman, G. The entropy formula for the Ricci flow and its geometric applications, preprint, (2002).